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Class 494/53 - Including element having helical blade


Subclass of Class 494 - Imperforate bowl: centrifugal separators
Definition: Apparatus wherein the driven means includes a material-engaging
No. of patents: 218
Last issue date: 07/26/2011


1            
NumberTitleIssue Date
7985171Continuous loading and unloading centrifuge
A system for treating tar sand involving a centrifuge where under centrifugal force solvent treated tar sand and water form a three layer system of wet sand, water, and petroleum, where solvent solubilized hydrocarbons are stripped from the wet sand layer, passed th...
07/26/2011
7883457Helical conveyor centrifuge having a planetary gear drive device
A helical conveyor centrifuge, such as a solid-bowl or sieve-bowl centrifuge, includes a rotatable drum, a rotatable screw disposed within the drum, and a centrifuge drive for rotating the drum and the screw. The centrifuge drive is configured to set a differential ...
02/08/2011
7862493Centrifuge for continuous separation of flowable substances of different densities having an air extraction member
A screw centrifuge for the continuous separation of flowable substances of different densities includes a rotor drum having discharge openings for the heavy phase that are arranged in a conical portion of the rotor wall, and weir openings for the light phase that ar...
01/04/2011
7753834Solid-wall centrifuge comprising a weir provided with a stationary angled deflector plate
A solid-bowl centrifuge comprising, a centrifugal drum rotatable about a horizontal axis of rotation, the centrifugal drum including a weir to drain a liquid out of the centrifugal drum, the weir including a passage having at least one passage opening in an axial en...
07/13/2010
7670276Decanter type centrifugal separator with torque transmission mechanism
A decanter type centrifugal separator includes a torque transmission mechanism with enhanced effect of absorbing a torsional vibration. The decanter type centrifugal separator (10) includes a bowl (20); a screw conveyor (40) disposed in the bowl...
03/02/2010
7438678Full jacket helical conveyor centrifuge with electromagnetic direct drive
A full-jacket helical conveyor centrifuge including a rotatably disposed drum and a drive device for the drum. The drive device for the drum includes at least one electromechanical direct drive having secondary elements arranged on the outer periphery of the drum or...
10/21/2008
7431684Centrifuge comprising hydraulic differential speed determination
Disclosed is a centrifuge including a rotationally mounted drum and a worm mounted therein in a concentric manner to rotate at a different speed therefrom. The drum and the worm are driven by a stationary motor unit. A hydraulic motor, provided with a housing and a ...
10/07/2008
7387602Apparatus for centrifuging a slurry
A method and apparatus for centrifuging. The apparatus comprises a centrifuge for centrifuging a slurry, comprising a bowl driven by a bowl drive motor, a screw conveyor driven by a screw conveyor drive motor, a pump driven by a pump motor, a bowl drive unit operati...
06/17/2008
7374529Liner for a centrifuge discharge port
A conical housing of a horizontal decanter centrifuge includes a discharge port liner that attaches to the conical housing from the outside of the housing. The discharge port is substantially rectangular in configuration, and the liner slides down into the port open...
05/20/2008
7373996Method and system for separation of drilling/production fluids and drilled earthen solids
A method of separating drilling/production fluids from solid cuttings from a mixture received from down hole, without the use of shale shakers, de-sanders, or de-sanders, through the steps of flowing the mixture from the well bore into a flow line above the surface ...
05/20/2008
7371322Filtration system and dynamic fluid separation method
A filtration system is provided with filter media operable to remove solids, particulate and colloidal matter from a process fluid. The filtration system may include one or more porous membranes which are anchored or secured on their periphery with a large open work...
05/13/2008
7335312Centrifuge with combinations of multiple features
A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation....
02/26/2008
7326169Full-jacket helix centrifuge with a weir
A full-jacket helix-type centrifuge including a drum and at least one weir having a port. A throttle disk is assigned to the port. At least one nozzle rotates with the drum and is assigned to an outlet for discharging clarified liquid from the drum. ...
02/05/2008
7320750Centrifuge with controlled discharge of dense material
A centrifuge with controlled discharge of dense materials disclosed. A centrifuge includes a fluid separation wall placed within a sleeve to form a containment zone therebetween. The fluid separation wall aligns and rotates parallel to an axis of rotation. A recepta...
01/22/2008
7311654Solid bowl helical conveyor centrifuge comprising an adjustable outlet for solids
A solid bowl helical conveyor centrifuge, including a rotatable drum having a horizontally-oriented axis of rotation and a rotatable screw arranged in the rotatable drum. Also included is at least one discharge opening oriented at an angle with respect to the horizo...
12/25/2007
7294274Filtration system with enhanced cleaning and dynamic fluid separation
A filtration system is provided with filter media operable to remove solids, particulate and colloidal matter from a process fluid. Acoustic, vibration and sonic energy may be used to clean associated filter media to allow substantially continuous filtration of proc...
11/13/2007
7282147Cleaning hollow core membrane fibers using vibration
A filtration system is provided with hollow membrane filter elements operable to remove solids, particulate and colloidal matter from a process fluid. Acoustic, vibration and ultrasonic energy may be used to clean exterior portions of the hollow membrane filter elem...
10/16/2007
7282019Centrifuge with shaping of feed chamber to reduce wear
A centrifuge of the type having an outer bowl and an inner rotor both of which are generally cylindrical and rotate in the same direction but at slightly different rates separates slurry fed into the interior of the rotor into solids and liquid. An auger flight on t...
10/16/2007
7255670Three phase decanter centrifuge
A three-phase decanting centrifuge is provided. Solids are removed from a slurry in the centrifuge in the conventional manner, as described above. The liquid separated from the slurry moves into a fluids reservoir. Centrifugal action classifies the fluids, with ligh...
08/14/2007
7247133Decanter centrifuge with wear reinforcement inlet
A decanter centrifuge has a hollow, rotatable drum with a screw conveyor comprising a core body (1), in which an inlet opening for material into the drum from an inlet chamber (3) is provided, the inlet opening having a delimitation surface (7) ...
07/24/2007
7229399Screw conveyor for a decanter centrifuge
A screw conveyor intended and formed for use in a decanter centrifuge for separation of solid particles from a fluid compound, comprising a central body, at least one conveyor thread and at least one baffle bridging a flow path formed between different parts of the ...
06/12/2007
7156801Decanter centrifuge with a screw conveyor having a varying pitch
The decanter centrifuge comprises a screw conveyor having a body (4), which carries a screw comprising one or more flights (7, 7′) and having a nominal transport speed varying along the longitudinal axis. An inlet (6) is provided in the screw ...
01/02/2007
7153255Screw centrifuge for the wet mechanical separation of solids
A screw centrifuge for the wet-mechanical separation of a mixture of solids in a carrier liquid to produce sinks and floats, including a rotor which rotates about a horizontal axis, the rotor having a cylindrical wall and two conical walls, and a conveyor screw whic...
12/26/2006
7115202Method for the separation of multi-phase mixture and decanting centrifuge system for carrying out said method
A method for separating a multi-phase mixture (50) into a liquid phase (54) and a dry phase (52) with a specified dry matter concentration. A decanting centrifuge (100) with an annular immersion disk (14) and a weir arranged at an ...
10/03/2006
7090634Driving system for a separator having a centrifugal drum and a neck bearing
A driving system for a separator having a centrifugal drum with a vertical axis of rotation. The driving system includes a vertically aligned driving spindle configured to accommodate a centrifugal drum. The driving spindle is arranged by a neck bearing and a footst...
08/15/2006
7083565Solid-bowl centrifuge having a disk stack on the drum cover
The present invention is a solid-bowl screw centrifuge that includes a centrifugal drum. The drum has a drum casing and a screw with a screw body that is surrounded by a screw blade. The screw blade forms at least one screw spiral with a conveying path for transport...
08/01/2006
7081206Filter apparatus and method with centrifugal separator for removing contaminants from a fluid
The filter removes volatile, particulate and water-based contaminants from a fluid, such as lubricating oil, of a different density than the contaminants. The device has a cone shaped, jet-propelled, helical-spiral wiper rotor creating centrifugal forces that separa...
07/25/2006
7060019Solid bowl screw centrifuge comprising a distributor
The present invention relates to solid bowl screw centrifuge comprising a centrifuging chamber having a rotatable screw with a center axis and a rotatable drum surrounding the centrifuging chamber. Also included is an axially extending inflow tube for guiding materi...
06/13/2006
7056273Solid bowl screw centrifuge comprising a peeling disk, and method for the operation thereof
A solid bowl screw centrifuge includes a centrifuging chamber and a rotatable drum having a horizontal axis of rotation. The rotatable drum surrounds the centrifuging chamber. Also included is a rotatable screw arranged in the rotatable drum, at least one solids dis...
06/06/2006
7041044Rotatable machine or centrifuge with driving motors in a simple casing
The rotatable machine (1) of the invention comprises a chamber (2) and a shaft (3), wherein the shaft (3) is mounted in the chamber (2) such that, upon rotation of the shaft (3) and the chamber (2), the shaft (3
05/09/2006
7032759Pusher centrifuge
The invention relates to a pusher centrifuge (1) for the separation of a mixture (2) into a solid cake (3) and into a liquid phase (4). The pusher centrifuge (1) in accordance with the invention includes an outer screen drum (6
04/25/2006
7025211Double pusher centrifuge
The invention relates to a double pusher centrifuge including a screen drum (3) rotatable about an axis of rotation (2) for separating a mixture (4) into a solid material cake (5) and a liquid phase (6), a mixture distributor (7...
04/11/2006
7018326Centrifuge with impellers and beach feed
A centrifuge for separating feed material into component parts, in one aspect primarily solid and primarily liquid parts, the centrifuge, in certain aspects, including a conveyor rotatably mounted in a rotatable housing, the conveyor having an interior and at least ...
03/28/2006
7001324Method of retrofitting a decanting centrifuge
A method of retrofitting a centrifuge is provided. The method includes disassembling a known centrifuge and replacing a bowl section of the centrifuge outer body with a longer bowl section. The method further comprises replacing the conical beach section with a shor...
02/21/2006
6986733Solid bowl helical conveyor centrifuge with a pressurized housing
A solid bowl helical conveyor centrifuge. The centrifuge includes a rotating drum, having a centrifuge space with a screw that can also rotate. An inlet tube for supplying a material for centrifugation into the centrifuge space, and at least one liquid discharge and...
01/17/2006
6981940Centrifuge control system with power loss ride through
A control system for a centrifuge that allows the centrifuge to continue to run when there is a short duration failure or outage of the AC power source. The control system allows the centrifuge to be brought to a stop in a normal shutdown mode where there are longer...
01/03/2006
6971525Centrifuge with combinations of multiple features
A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation....
12/06/2005
6971982Apparatus for centrifuging a slurry
A method and apparatus for centrifuging. The apparatus comprises a centrifuge for centrifuging a slurry, comprising a bowl driven by a bowl drive motor, a screw conveyor driven by a screw conveyor drive motor, a pump driven by a pump motor, a bowl drive unit operati...
12/06/2005
6951273Hanger bearing for auger type poultry chiller with cone deflector
A poultry chiller 100 has a hanger 140 suspended from the upper portion of the tank 102 that supports the bearing block 160 of the auger shaft 112 between the auger blades. A conical bird deflector 175 is mounted on the auge...
10/04/2005
6932913Method for vibration in a centrifuge
A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and ...
08/23/2005
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